<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @copyright   Copyright (c) 2014 X.commerce, Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */
namespace Magento\Framework\Module;

/**
 * Resource Model Interface
 */
interface ResourceInterface
{
    /**
     * Get Module version from DB
     *
     * @param string $resName
     * @return false|string
     */
    public function getDbVersion($resName);

    /**
     * Set module version into DB
     *
     * @param string $resName
     * @param string $version
     * @return int
     */
    public function setDbVersion($resName, $version);

    /**
     * Get resource data version
     *
     * @param string $resName
     * @return string|false
     */
    public function getDataVersion($resName);

    /**
     * Specify resource data version
     *
     * @param string $resName
     * @param string $version
     * @return $this
     */
    public function setDataVersion($resName, $version);
}
